In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D". 

[header] How to install a bakflip hd tonneau cover on a ford f150 [title] Place the rail of the bakflip hd on right hand side bed rail of the f150. [step] Slide the tonneau rail all the way forward to the bulk head. It is a good idea to have a squeeze clamp or similar to hold it in place. <sep> (A) [title] Slowly turn the bakflip over so it moves slowly, its going to wobble and have to be bent the opposite way of the rail. [step] Be prepared for a lot of bumping. (B) [title] Tightly wrap round tray socket on right hand rail over cover and fasten. [step] Compression disks complete a swivel mounted over rail. (C) [title] Place the included rail clamps in place. [step] Tighten with a wrench or socket. (D) This will prevent the oil from jumping up and down accidentally while the g2 is being painted. [title] Place the nikon bolt assembly inside the couplers cradle.
C

[header] How to operate a manual pallet jack [title] Find the release lever. [step] Stand behind the manual pallet jack as this is the position you will be in when you move it. Find the small lever that allows the pallet jack prongs (the large flat metal pieces near the floor) to drop all the way down toward the floor. <sep> (A) Pass that lever over the top of the pallet jack, locking it in place with your fingertips. Keep the pallet jack in this position for 45 seconds, until it begins to tilt upwards slightly. (B) Lock the release lever in place and open the pallet jack by rotating it counter clockwise. [substeps] One second later, reverse the motion in the locked position and use the bucket with the release lever to hoist the pallet jack farther up. (C) [substeps] The pallet jack drop lever is often a small lever in the middle of the rounded handle, on the vertical stem of the manual machine. It may be distinguished by a different color of plastic, or otherwise marked, or it may not be. (D) [title] Pull the lever counterclockwise. [step] Steadily pull this lever counterclockwise.
C

[header] How to make cheap vodka taste better [title] Pour the vodka though a standard water filter. [step] The key ingredient in your filter that removes impurities from the vodka is generally a charcoal filter. This kind of filter removes oil and sugar, along with any other impurities, from the vodka that that make it taste less than delicious. <sep> (A) Carbon, carbon plug, or air purifier filters work well for this purpose. [substeps] You can make either aluminum or a glass filter though whatever you make make will accomplish the same thing. (B) Because the filter is designed to filter out oil and sugar, you only need a pinch of that oil to make the vodka taste better. [title] Replace the filter if you don't like how the vodka tastes. (C) [title] Use water or a mixture of water and vodka. [step] If you want a less dangerous version of the same taste and texture, add water or a mix of water and vodka. (D) [substeps] Using a small funnel can help you pour your vodka into your filter's reservoir more easily, resulting in less liquor spilled. [title] Agitate your vodka and keep it in a cool place.

D

